Argument analysis: Justices skeptical of categorical “exhaustion” of patent rights - SCOTUSblog"The case involves the doctrine of “exhaustion,” under which a patentholder’s rights to enforce its patent ordinarily are “exhausted” with regard to any particular object at the moment the patentholder sells the object. As applied to this case, for example, Lexmark’s rights to control the use of its patented refillable print cartridges would be “exhausted” when it sells those cartridges to retail buyers, even if Lexmark conditions the sale on the promise that the buyer will not refill the cartridge."